Make additional columns sortable and fix slider font

[brianlove]

Make the Country, Region, Stage, and Sector columns sortable (closes #274)

Fix the font in the floating labels for the sliders (closes #327)

[github-actions]

No need for rebasing 👍
behind_count is 0
ahead_count is 1

[github-actions]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
607	395	65%	0%	🟢

New Files

No new covered files...

Modified Files

No covered modified files...

updated for commit: 022231e by action🐍

[github-actions]

JavaScript Coverage

Summary

Lines	Statements	Branches	Functions
	67.36% (388/576)	55.62% (188/338)	67.93% (125/184)

Modified Files • (67%)

File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
All files	67.36	55.62	67.93	67.09
components	63.92	56.65	62.59	63.46
HeaderSlider.jsx	88.23	83.33	80	86.66	66–67
ListViewTable.jsx	91.01	73.25	98.36	90.9	285, 368–369, 374–377, 486, 531, 691, 712–715, 731–732, 756–757, 760, 778–781, 801–806
static_data	67.85	45.45	77.27	65.38
table_columns.js	66.66	45.45	77.27	64	222–575, 593

[jmelot]

👍